PWP Ultimate Prizefighters 4 took place in the Plymouth Guildhall in Plymouth, Devon, England. The event took place on March 5, 2017. The event was the fourth and final annual Prizefighters championship. The event was a one-day eight-man tournament, with the winner receiving a PWP Heavyweight Championship match at PWP Pride & Glory 2017. The event would see last years champion Eddie Ryan win all three matches, defeating Gideon in the main event.
- Numbers in parentheses indicate the length of the match.
- (c) refers to the champion(s) heading into the match.
- Gideon defeats John Harding
- Eddie Ryan defeats Grayson Reeves
- Adam Maxted defeats Buddaine
- Grado defeats Joshua Knott
- Gideon defeats Grado
- Eddie Ryan defeats Adam Maxted
- Ultimo Tiger (c) defeats Lomaxx and Tyler Hawke to retain the PWP Heavyweight Championship
- Eddie Ryan defeats Gideon